Tube for automobiles, bicycles, and the like.



E. J'. NDRIEU. TUBE FOB, AUTOMOBILES., IBIOYGLES,- AND THE LiKE. APPLI'OATION FILED PEB. ze, 1912.

aus-aun .rosarnhnnnrnm or nonna-rx,

FRANCE.'

TUBE EGEL AUTOEOBLES, IGYLES, .ifi/NE THE LKE.

pesares.

Specification or Letters atent.

Patenten naar. is, reis.

.application ied February 25%, i912". geriet No. G.

tion of inner tubes.

The obiect of the invention is to providev reinforcements at the inner and outer pcrtion of the tube, the reinforcements being so constructed and arranged that the pneumatic features of the tube will not be seriously affected.

The invention also relates to the details of 'construction of parts which Willbe hereinafter described and particularly' pointed out in the claims.

The View in the drawing represents a cross section of my improvement, the outer c asing ofthe tire herein shown in'dotted mes.

S indicates a tire tube the inner portion of which tapers as shown at E. An inwardly extended tapered partition A, projects from the inner surface of the tread portion of the tube, and extends entirely around the latter. The partition A forms a tapered pocket in Which are layers of resilien t strips of material C. Each strip is formed with alternate annular ribsland projections, so that when the strips are assembled in the pockets a plurality of annular air channels B, are formed.

Extending across the tube adjacent the tapered portion E is a substantially horizontal partit-ion D, which with the Walls of the tube form a pocket, in .which stri s of resilient material 'C' and C2 are con ned. The strips C are formed on their opposite surfaces with alternating ribs and depressions. The surfaces .of the strips C2 are fiat, so that when all thestrips are assembled in the pocket a plurality of annular air channels are formed between the partition D and the inner tapered end of the tube.

In the manufacture ot my improved tire, the tube is V'slightly vulcanized, suiHcient-ly to make it hold its shape. The strips C, C1, and C2, are also lightly vulcanized in the same manner as the tube. The strips C1 and C2 are subjected .to the action of a solvent air tube,

to bind them together, land then with the strips C, are placed in the tube. The tube and strips are' connected and then the tire is' subjected to the final vulcanizing operation.

I n operation, the tube is inserted in the vcasing K inthe usual manner, as 'indicated 1n the drawing. if the tube should be punc.- tured the air would of course escape from the chamber E, but because of the partitions the tire can be used. The load will:r com-l press the tire and the inner surface ot the vpartition A, will contact with the partition in the pockets are D, and as the air channels closed, the eiiectiveness of the tire will not be destroyedf Having now fully described my said invention, what I claim and desire to secure by Letters Patent, is: j

1. A Wheel tire comprising a continuous the inner portion of which is tapered in cross section, the tube havinga partition formed therein adjacent the tapered portion to form an annular pocketflayers of resilient strips inserted in said pocket, certain of said resilient strips having ribs and depressions to form spaces between said strips, an annular hollow portion projecting from the inner surface of the outer portion of the tube to form a pocket, a plurality of .resilient strips supported in the latter pocket, each of said strips havingprojections and depressions -on opposite faces to provide annular air channels in said pocket.

2. A -Wheel tire. comprising a continuous air tube, the'inner 4portion of which is tapered, said tube having a partition formed therein adjacent the tapered portion to provide a pocket, resilient strips of material supported in the pocket, an abutment formed at the outer portion of said tube and projecting inwardly toward the partition, the said abutment containingv an annula-r ,resilient strip formed with depressions and ribs to provide air channels.

3. A tire for a Wheel comprising a continuous tube, the inner portion of Which tapers in cross section, the inner portion of the tube having a plurality of annular air chambers, a Vtapered partition projecting from the inner surface of the tread portion of the tube and forminga tapered pocket, a plurality of layers of resilient material supported in the last mentioned tapered pocket,

each of the latter layers of resilient material having alternating ribs and depressions on opposite sides, the said alternating ribs and depressions forming a plurality of air channels when the layers are assembled in the tapered pocket, the inner portion of the tuoe with the annular chambers serving as a butler for the 'projection In testimony whereof I have hereunto set my hand 1n presence of two Witnesses.

EUGNE JosEPH ANDRIEU.

lVtnesses CHARLES SIEVIN, JULES Ainmmf. 

